Improving yield and composition of protein concentrates from green tea residue in an agri-food supply chain: Effect of pre-treatment

Zhang, Chen; Krimpen, M.M. van; Sanders, J.P.M.; Bruins, Marieke E.

doi:10.1016/j.fbp.2016.06.001

Cited by 24 publications

(23 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using PBS of pH 8, polyphenols can be also oxidized and solubilized, while using Viscozyme ® L other carbohydrates such as hemi-cellulose and cellulose can be hydrolyzed and released with only little amounts of polyphenol (Zhang et al, , 2016.…”

Section: Resultsmentioning

confidence: 99%

“…Viscozyme ® L showed high GA extraction with low protein extraction, demonstrating its potential for the integration with the subsequent alkaline protein extraction (Zhang et al, 2016). To look into the mechanism of enzyme aided GA extraction, the separate enzymes in Viscozyme ® L, including arabinanase, hemi-cellulase, and cellulase on GTR were tested using extractions with pectinase and galactanase as controls.…”

Section: Which Enzymes In Viscozyme ® L Determine Ga Extractionmentioning

confidence: 99%

“…Applying leaf pectin for GA has a lower value than its application in food, and the production costs are relatively high due to its low content in leaf. To lower extraction costs, pectin extraction can be integrated with an already cost-effective alkaline protein extraction (Zhang et al, , 2016. This alkaline protein extraction can be applied with a profit of about 85 D /ton GTR excluding capital and labor cost (Zhang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…An integrated biorefinery concept was proposed to further improve the cost-effectiveness of this protein extraction . It was suggested that removal of leaf pectin prior to protein extraction can reduce alkali consumption and improve protein quality (Zhang et al, 2016). Therefore, the next logic step is to consider pectin as a side product of protein extraction.…”

Section: Introductionmentioning

confidence: 99%

“…To determine the most suitable GA extraction method for integration with protein extraction, green tea residue (GTR) was used as a model material, as it was previously used for a study on alkaline protein extraction (Zhang et al, 2014(Zhang et al, , 2016. GA extraction yield in NaOH, phosphate buffer solution (PBS), and with Viscozyme ® L (containing arabanase, cellulase, ␤-glucanase, hemicellulase, and xylanase) and its relation to protein yield were first tested using acid or water as controls.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Integration of galacturonic acid extraction with alkaline protein extraction from green tea leaf residue

Zhang

Bozileva

Klis

et al. 2016

Industrial Crops and Products

Self Cite

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Section: Which Enzymes In Viscozyme ® L Determine Ga Extractionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Integration of galacturonic acid extraction with alkaline protein extraction from green tea leaf residue

Zhang

Bozileva

Klis

et al. 2016

Industrial Crops and Products

Self Cite

View full text Add to dashboard Cite

Green and Sustainable Extraction of High‐Value Compounds

Zanotti¹,

Stahl²,

Segatto³

et al. 2022

Sustainable Separation Engineering

View full text Add to dashboard Cite

Sustainable scenarios for alkaline protein extraction from leafy biomass using green tea residue as a model material

Zhang

Slegers

Wisse

et al. 2018

Biofuels Bioprod Bioref

Self Cite

View full text Add to dashboard Cite

Leaf protein can be extracted cost‐efficiently using 0.1 mol dm−3 NaOH, but this process is less sustainable due to the generation of large amounts of sodium salts. KOH or Ca(OH)2 are considered as replacements for NaOH, as these salts can be reused. This work evaluates the economic and environmental sustainability of weak alkaline pectin extraction followed by KOH enhanced protein extraction, and Viscozyme® L‐aided pectin extraction followed by Ca(OH)2 enhanced protein extraction. The evaluations are made for green tea residue and are compared to related processes using NaOH. The predicted profits using KOH are comparable to those using NaOH. Environmental sustainability improves for all impact categories in the case of KOH extraction. Further environmental benefits are obtained by substituting conventional K fertilizer with the K‐rich salty waste water from the extraction process. The profits of the process using Ca(OH)2 are highly dependent on the extraction yield of the protein product. Protein extraction yields using Ca(OH)2 need to be higher than 70% to be more profitable than the same process with NaOH. The environmental benefits of Ca(OH)2 extraction include the absence of salty waste water and the net production of heat. This is accompanied by increased electricity consumption. Thus, the impact categories of climate change, fossil and water depletion, and particulate matter formation worsen. Photochemical oxidant formations remain the same, while the other impacts improve. This work has shown the potential and bottlenecks of NaOH, KOH and Ca(OH)2 protein extraction on different types of biomass in terms of environmental and economic sustainability. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd

show abstract

Improving yield and composition of protein concentrates from green tea residue in an agri-food supply chain: Effect of pre-treatment

Cited by 24 publications

References 41 publications

Integration of galacturonic acid extraction with alkaline protein extraction from green tea leaf residue

Integration of galacturonic acid extraction with alkaline protein extraction from green tea leaf residue

Green and Sustainable Extraction of High‐Value Compounds

Sustainable scenarios for alkaline protein extraction from leafy biomass using green tea residue as a model material

Contact Info

Product

Resources

About